/* 
 * 动画样式文件
 * 参考网站: https://huohuo90.com/home
 */

/* 页面过渡动画 */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.page-transition-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* 页面加载动画 */
body {
    opacity: 0;
    transition: opacity 0.8s ease;
}

body.loaded {
    opacity: 1;
}

/* 部分进入视口时的动画 */
.section-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 链接悬停效果 */
a {
    position: relative;
    transition: color 0.3s ease;
}

a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: currentColor;
    transition: width 0.3s ease;
}

a:hover::after {
    width: 100%;
}

/* 图片悬停效果 */
.hover-scale {
    transition: transform 0.5s ease;
    overflow: hidden;
}

.hover-scale:hover img {
    transform: scale(1.05);
}

.hover-scale img {
    transition: transform 0.5s ease;
}

/* 按钮悬停效果 */
.btn {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
}

/* 导航链接特殊效果 - 已移除蓝色动效 */
.nav-links a {
    position: relative;
}

/* 滚动触发的渐入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

/* 延迟动画 */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* 页面加载动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 页面切换动画 */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease forwards;
}

.slide-in-right {
    animation: slideInRight 0.8s ease forwards;
}

.scale-in {
    animation: scaleIn 0.8s ease forwards;
}

/* 首页元素动画 */
.home-title {
    opacity: 0;
    animation: fadeIn 0.8s ease 0.3s forwards;
}

.home-description {
    opacity: 0;
    animation: fadeIn 0.8s ease 0.6s forwards;
}

.home-buttons {
    opacity: 0;
    animation: fadeIn 0.8s ease 0.9s forwards;
}

/* 导航栏动画 */
.hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    transform: rotate(-45deg);
}

/* 图片悬停动画 */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.image-pulse:hover {
    animation: pulse 1.5s infinite;
}

/* 按钮悬停动画 */
@keyframes buttonHover {
    0% {
        box-shadow: 0 5px 15px rgba(254, 87, 34, 0.2);
    }
    50% {
        box-shadow: 0 8px 20px rgba(254, 87, 34, 0.4);
    }
    100% {
        box-shadow: 0 5px 15px rgba(254, 87, 34, 0.2);
    }
}

.primary-btn:hover {
    animation: buttonHover 2s infinite;
}

/* 文字渐变动画 */
@keyframes textGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-text {
    background: linear-gradient(45deg, var(--accent-color), #ff9800, var(--accent-color));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textGradient 5s ease infinite;
}

/* 滚动动画类 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 鼠标悬停动画 */
@keyframes hoverFloat {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

.hover-float:hover {
    animation: hoverFloat 2s ease infinite;
}

/* 网格项目显示动画 */
.grid-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.grid-item.show {
    opacity: 1;
    transform: translateY(0);
}

/* 卡片悬停效果 */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 加载中动画 */
@keyframes loadingDots {
    0%, 20% {
        opacity: 0;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(-5px);
    }
    80%, 100% {
        opacity: 0;
        transform: translateY(0);
    }
}

.loading-dots span {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-color);
    margin: 0 3px;
}

.loading-dots span:nth-child(1) {
    animation: loadingDots 1.5s 0s infinite;
}

.loading-dots span:nth-child(2) {
    animation: loadingDots 1.5s 0.3s infinite;
}

.loading-dots span:nth-child(3) {
    animation: loadingDots 1.5s 0.6s infinite;
}

/* 背景颜色渐变 */
@keyframes bgGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.bg-gradient {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: bgGradient 15s ease infinite;
}

/* 光标跟随效果 */
@keyframes cursorGlow {
    0% {
        box-shadow: 0 0 10px rgba(254, 87, 34, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(254, 87, 34, 0.8);
    }
    100% {
        box-shadow: 0 0 10px rgba(254, 87, 34, 0.5);
    }
}

.cursor.glow {
    animation: cursorGlow 2s infinite;
}

/* 页面切换过渡 */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--accent-color);
    z-index: 999;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.6s ease;
}

.page-transition.active {
    transform: scaleY(1);
    transform-origin: bottom;
}